Ch. 30 Lenses

Is a convex lens thicker or thinner in the middle?

• Thicker 
• Thinner 

Which describes a convex lens?

• triangular in shape
• more transparent in the middle
• thicker on the edges than in the middle
• thicker in the middle than on the edges

When light waves move from passing through air to passing through a glass lens when happens to them?

• They slow down and change direction

• They speed up and change direction

• They maintain the same speed and change direction

• They maintain their same speed and direction

Tags

NGSS.MS-PS4-2

This diagram best represents 

• reflection
• refraction
• absorption
• diffusion

Tags

NGSS.MS-PS4-2

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?

• A

• B

• A and B

• neither A or B

What does the word "diverging" mean?

• to spread apart
• to come together
• parallel
• perpendicular

What does the word "converging" mean?

• to separate
• to come together
• parallel 
• perpendicular

A converging lens is also known as a ____ lens.

• convex
• concave
• double
• refracted

Which type of lens can transmit 100% of the light incident upon it?

• Contact lens

• No lens

• Camera lens

• Every lens

• Compound lens

Tags

NGSS.MS-PS4-2